Rebels in Syria so desperate for weapons they're using cannons made of SCRAP

RUSTY: Syrian rebels are resorting to makeshift weapons to fight the IS [GETTY]

These shocking photos show members from the Islamic Front in the city of Aleppo loading a hastily put-together mortar made from rusted scrap metal, and firing a canister with fins welded on.

It is unknown whether these Scrapheap Challenge-style weapons are explosive, but the size and weight of the canisters used could definitely cause lethal damage.

These desperate measures are the latest in an on-going clash between the Islamic Front and IS, who were initially allied last year to fight against Syrian President Bashar Assad.

However, as IS started dominating territory and enforced increasingly more brutal interpretations of Islam (including decapitations, just like the brutal killing of journalist James Foley), the Islamic Front have split away and tried to fight IS themselves.

Air and ground attacks by IS have killed 25 people in Aleppo this week, though it is unknown how many of them were civilians.